CN2938531Y - Double-power supply switch over device - Google Patents
Double-power supply switch over device Download PDFInfo
- Publication number
- CN2938531Y CN2938531Y CN 200620106741 CN200620106741U CN2938531Y CN 2938531 Y CN2938531 Y CN 2938531Y CN 200620106741 CN200620106741 CN 200620106741 CN 200620106741 U CN200620106741 U CN 200620106741U CN 2938531 Y CN2938531 Y CN 2938531Y
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- China
- Prior art keywords
- power supply
- circuit
- double
- cpu circuit
- switching device
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to the electrical field, in particular to a double power switching device, which comprises a CPU circuit. The CPU circuit is provided with a voltage phase detection circuit which is respectively connected to a common power supply and a backup power supply. The CPU circuit signal output controls the common and back up power supply breakers through the electrical and mechanical interlocks. The utility model is characterized in the simple structure, easy maintenance, excellent security, reliability and so on.
Description
Technical field
The utility model relates to appliance field, relates in particular to a kind of double-power supply switching device.
Background technology
In electric power system, the field of some emphasis or specific (special) requirements, as hospital, bank, market, fire department, skyscraper, important office, need quantity-produced enterprise etc., do not allow outage, for power supply safety, one all adopts the duplicate supply confession, when power supply commonly used breaks down or cuts off the power supply, can switch to the stand-by power supply power supply.Great majority adopt air switch or contactor at present, and are controlled with a large amount of relays, its control loop complexity, and it is loaded down with trivial details, difficult in maintenance to construct, and it is arranged side by side that two road power supplys easily take place, and causes power failure, and poor reliability threatens to safety in production simultaneously.
Summary of the invention
The purpose of this utility model is to provide a kind of related electric parameter that can detect the two-way power supply, and brakes switching according to testing result, possesses the double-power supply switching device of characteristics such as simple in structure, easy to maintenance, safe, reliable simultaneously.
A kind of double-power supply switching device of the utility model, this device also comprise a cpu circuit, connect a voltage-phase testing circuit on the cpu circuit, and this voltage-phase testing circuit is connected with power supply commonly used and stand-by power supply respectively; The signal output of cpu circuit is by electrical interlock and the circuit breaker of mechanical interlocking control power supply commonly used and the circuit breaker of stand-by power supply.
As of the present utility model one preferred, described cpu circuit is the ATMEL microprocessor.
As of the present utility model one preferred, also be connected with a liquid crystal display circuit on the described cpu circuit, to show testing result.
The utility model has solved the problem that exists in the background technology, has realized the automatic switchover between commonly used/stand-by power supply, and possesses characteristics such as simple in structure, easy to maintenance, safety, good reliability.
Description of drawings
Fig. 1: electrical schematic diagram of the present utility model.
Embodiment
The utility model is described further by specific embodiment below in conjunction with accompanying drawing.
The double-power supply switching device that present embodiment provided, comprise a cpu circuit, this cpu circuit is an AMTEL microprocessor 4, this AMTEL microprocessor 4 is provided with the voltage-phase testing circuit 2 that is connected with power supply 1 commonly used and stand-by power supply 3 respectively, the signal output part of AMTEL microprocessor 4 is provided with electrical interlock 4 and mechanical interlocking 7, signal is controlled circuit breaker 8 on the power supply 1 commonly used and the circuit breaker 6 on the stand-by power supply 3 by electrical interlock 4 and mechanical interlocking 7, also be connected with liquid crystal display circuit on the cpu circuit, to show the CPU result.
Detect by the voltage signal of voltage-phase testing circuit power supply commonly used and stand-by power supply, the supply voltage that is higher than rated value 110% is judged to overvoltage, be lower than being judged to of rated value 85% and owe (or mistake) voltage, cpu control circuit carries out logic determines to above-mentioned testing result, result by when foot (adjustable) drives corresponding instruction send separating brake or reclosing command to motor-operating mechanism (circuit breaker), above-mentioned testing result also can show on intelligent automatic control device panel LCD display, also can link to each other by serial ports one computer simultaneously and adopt software control, search reason for the user, so that the user repairs faulty line in the shortest time, make dual power supply reinstatement attitude.
Claims (3)
1, a kind of double-power supply switching device is characterized in that this device comprises a cpu circuit, connects a voltage-phase testing circuit on the cpu circuit, and this voltage-phase testing circuit is connected with power supply commonly used and stand-by power supply respectively; The signal output of cpu circuit is by electrical interlock and the circuit breaker of mechanical interlocking control power supply commonly used and the circuit breaker of stand-by power supply.
2, a kind of double-power supply switching device according to claim 1 is characterized in that described cpu circuit is the ATMEL microprocessor.
3, a kind of double-power supply switching device according to claim 1 and 2 is characterized in that also being connected with on the described cpu circuit liquid crystal display circuit, to show testing result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620106741 CN2938531Y (en) | 2006-08-16 | 2006-08-16 | Double-power supply switch over device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620106741 CN2938531Y (en) | 2006-08-16 | 2006-08-16 | Double-power supply switch over device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2938531Y true CN2938531Y (en) | 2007-08-22 |
Family
ID=38362560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620106741 Expired - Fee Related CN2938531Y (en) | 2006-08-16 | 2006-08-16 | Double-power supply switch over device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2938531Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104298578A (en) * | 2014-10-31 | 2015-01-21 | 上海原动力通信科技有限公司 | Testing device, system and method for double-way power supply of board card |
| CN106026362A (en) * | 2016-06-26 | 2016-10-12 | 潘炳松 | Control system for dual-power-supply switching apparatus |
-
2006
- 2006-08-16 CN CN 200620106741 patent/CN2938531Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104298578A (en) * | 2014-10-31 | 2015-01-21 | 上海原动力通信科技有限公司 | Testing device, system and method for double-way power supply of board card |
| CN106026362A (en) * | 2016-06-26 | 2016-10-12 | 潘炳松 | Control system for dual-power-supply switching apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |